Fix:
- Go to: Image Correction > Keystone Settings
- Turn OFF Intelligent Obstacle Avoidance
Then:
- Position projector:
- Distance: ~2 meters from the wall
- Surface: flat white wall
- Lighting: low ambient light
- Avoid extreme projection angles
- Keep the image mostly on a single surface
If the issue persists:
- Perform Factory Reset
- Run Calibration of Correction Function